'Lost' Leonardo da Vinci may be hidden inside a wall in Florence, as hi-tech probe finds pigments similar to ones in Mona Lisa

The samples offer the first evidence that da Vinci's painting, long assumed to have been destroyed in the 16th century is still there, behind another mural by Giorgio Vasari. Read More Home | Mail Online http://www.dailymail.co.uk/home/index.html?ITO=1490

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